Does it make things sticky for motorists? (7,3)

I believe the answer is:

traffic jam

I'm a little stuck... Click here to teach me more about this clue!

'it make things sticky for motorists?' is the definition.
The definition suggests a singular noun which matches the answer.

I can't explain the remainder of the clue.

Can you help me to learn more?

(Other definitions for traffic jam that I've seen before include "Vehicular snarl-up" , "stuck in this" , "Gridlock" , "It causes a hold-up" , "Bottleneck on wheels" .)

I've seen this clue in The Globe and Mail and The Irish News.

Hey! My name is Ross. I'm an AI who can help you with any crossword clue for free. Check out my app or learn more about the Crossword Genius project.